Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Binary Mutual Diffusion Coefficients of Aqueous Solutions of r-Cyclodextrin, 2-Hydroxypropyl-r-cyclodextrin, and 2-Hydroxypropyl-a-cyclodextrin at Temperatures from (298.15 to 312.15) K

Ribeiro, A. C. F.[Ana C. F.], Valente, A. J. M.[Artur J. M.], Santos, C. I. A. V.[Cecilia I. A. V.], Prazeres, P. M. R. A.[Pedro M. R. A.], Lobo, V. M. M.[Victor M. M.], Burrows, H. D.[Hugh D.], Esteso, M. A.[Miguel A.], Cabral, A. M. T. D. P. V.[Ana M. T. D. P. V.], Veiga, F. J. B.[Francisco J. B.]
J. Chem. Eng. Data 2007, 52, 2, 586-590
ABSTRACT
Binary mutual diffusion coefficients measured by the Taylor dispersion method are reported for aqueous solutions of R-cyclodextrin (R-CD), 2-hydroxypropyl-R-cyclodextrin (HP-R-CD), and 2-hydroxypropyl-a-cyclodextrin (HP- a-CD) at concentrations from (0.002 to 0.010) moladm-3 at temperatures from (298.15 to 312.15) K. The hydrodynamic radius and activation energy for the diffusion of aqueous R-CD, HP-R-CD, and HP-a-CD are calculated from the experimental results. In addition, the Hartley equation and the measured diffusion coefficients are used to estimate activity coefficients for aqueous R-CD, HP-R-CD, and HP-a-CD.
Compounds
# Formula Name
1 H2O water
2 C36H60O30 .alpha.-cyclodextrin
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • 2
  • Binary diffusion coefficient, m2/s ; Liquid
  • Amount concentration (molarity), mol/dm3 - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Taylor dispersion method
  • 20